TCM - Conical diffuser

Circular conical diffuser for ceiling installation

Suitable for cooling applications with supply/room air temperature difference as low as -12 °C

Integrated or suspended ceiling installation

Circular duct connection with rubber gasket

Detachable cone module, enabling the cleaning of the diffuser and ductwork

Product Models and Accessories

Models integrated in a panel for installation in modular suspended ceilings with dimension options of 450x450, 600x600 or 675x675 mm

Plenum options with measurement and adjustment functions

Measurement and adjustment module

The diffuser comprises several cones, made of epoxy-painted steel with a white (RAL 9010) or grey (RAL7004) standard colour.

The diffuser is suitable for exposed installation or installation flush to the ceiling.

The diffuser is connected to the ductwork using a Halton TRI balancing plenum, which utilises polyester fibre with a washable surface as sound attenuation material.

Option

The diffuser is connected to the ductwork using a Halton PLC plenum, which utilises mineral wool as sound attenuation material.

The plenum comprises an airflow measurement and adjustment module. The diffuser is suitable for installation in 450x450 mm, 600x600 mm and 675x675 mm false ceilings. The conical central core is removable.

Supply air is divided into several jets through the cones. The divergent sections of the diffuser create negative pressure below the diffuser so room air is induced into the supply air device. Room air and supply air mix.

This internal induction reduces temperature and the air velocity into the space. The process is the same outside the diffuser between the supply and mixed room air, with external induction further reducing velocity and the temperature difference between supply and room air. This effect reduces the flow disturbances.

The Halton TCM diffuser can be installed flush with a suspended ceiling or fully exposed in the space. The diffuser is connected either directly to the duct or using a Halton PLC plenum or Halton TRI balancing plenum. When it is connected directly to ductwork, a safety distance of minimum 3D upstream of the diffuser should be maintained.

Installation with plenum Halton TRI or PLC

TCM

ØD

TRI

H1

H2

100

100

TRI-100-100

17

249...279

125

125

TRI-125-125

17

279...309

160

160

TRI-160-160

17

312...342

200

200

TRI-200-200

22

377...407

250

250

TRI-250-250

27

394...424

315

315

TRI-315-315

27

494...524

When the Halton TRI spigot is installed in the plenum, the H2 dimension can be reduced by 60 mm.

TCM

ØD

PLC

H1

H2

355

355

PLC-355

27

604...634

400

400

PLC-400

35

584...614

450

450

PLC-450

35

786...816

Dimensions of ceiling opening

The airflow rate can be adjusted and measured only when the diffuser is installed.

In order to enable airflow adjustment and measurement of airflow rate, it is recommended that the diffuser be connected to a plenum equipped with the MSM module. The supply flow rate is determined using measurement and adjustment module MSM.

Detach the conical central core and pass the tubes and control spindle through the diffuser. Measure the differential pressure with a manometer. The flow rate is calculated using the formula below.

Adjust the airflow rate by rotating the control spindle until the desired setting is achieved. Lock the damper position with a screw. Replace the tubes and spindle in the plenum and push the conical central core back into place.

The k-factors for installations with different safety distances (D= duct diameter)

PLC/TRI

>8xD

min 3xD

125

9.9

12.6

160

16.9

21.9

200

28.3

31.0

250

47.9

51.5

315

78.6

Airflow adjustment damper DD

The airflow rate is adjusted by turning the damper blades behind the diffuser with a screwdriver. The measurement is carried out when the diffuser is installed.

Remove the conical central core by gently drawing it out by the central panel (simultaneously, a small pin on the inner side of the external cone is pushed and the assembly is turned clockwise, until it comes free).

Clean the parts by wiping them with a damp cloth.

Push the conical central core back into place so that the springs lock.

Option: with balancing plenum Halton TRI + MSM or PLC + MSM

Remove the measurement and adjustment module by gently pulling the shaft (not the control spindle). Wipe the parts with a damp cloth, instead of immersing in water.

Reassemble the measurement and adjustment module by pushing the shaft until the module meets the stopper.

The diffuser comprises several cones, made of epoxy-painted steel with a white (RAL 9010) or grey (RAL7004) standard colour.

The diffuser is suitable for exposed installation or installation flush to the ceiling.

The diffuser is connected to the ductwork using a Halton TRI balancing plenum, which utilises polyester fibre with a washable surface as sound attenuation material.

Option

The diffuser is connected to the ductwork using a Halton PLC plenum, which utilises mineral wool as sound attenuation material.

The plenum comprises an airflow measurement and adjustment module. The diffuser is suitable for installation in 450x450 mm, 600x600 mm and 675x675 mm false ceilings. The conical central core is removable.